Synaptic gap
Synaptic pattern: in the center visible synaptic cleft (4).
Synaptic gap is an element of synaptic construction. This is a gap between the presynaptic membrane and the postsynaptic membrane.
The synaptic gap occurs mainly in chemical synapses, because in the synaptic nerves this gap is severely reduced due to the transfer of depolarisation of the presynaptic membrane directly into the postsynaptic membrane.
Neurotransmitters are secreted into the synaptic cleft. Excessive neurotransmitter diffusion beyond the synaptic cleft prevents the characteristic connective tissue between the presynaptic and postsynaptic membranes - which enables direct neurotransmitter access to receptors located on the postsynaptic membrane.
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